TWIN 255/764 PENTAIR

The TWIN 255/764 Pentair softener VALVE  is a vital part of any water treatment system, providing effective water hardness management. Suitable for residential, commercial, and industrial applications, it handles all maintenance, rinsing, and resin regeneration tasks with precision and reliability.

The VALVE  supports two types of regeneration programming:

• Time-controlled: Regeneration starts at a pre-set time, allowing flexible scheduling daily or at intervals.
• Volumetric: Regeneration is based on actual water consumption, ensuring efficient use and optimal performance.

The TWIN 255/764 Pentair provides high performance and continuous operation for larger water systems. Constructed from Glass-filled Noryl® (NSF certified), it ensures durability and long service life. Suitable for tanks up to 13" and resin capacity of 5–75 L.

Technical Specifications:

• Backwash Flow Rate: 1.36 m³/h (1.72 bar pressure drop)

• Cv: 3.99

• Operating Pressure: 1.4 – 8.4 bar

• Valve Material: Glass-filled Noryl – NSF listed material

• Tank Size: Up to 13" diameter

• Tank Connection: 2 1/2" NPSM

• Resin Volume Range: 5 – 75 L

• Drain Line Connection: 1/2" (manifold kit dependent)

• Brine Line Connection: 1/4" NPT air check built into valve

• Distributor Pilot: 1.05"

• Distributor Tube Length Above Tank: +2.9 cm

• Dimensions: 37.8 × 20.9 × 21.3 cm (twin × 2)

• Weight: 1.8 kg (twin 3.7 kg)

• Included Accessories: European transformer, user manual, air check kit, 1/4" elbow for air check kit, 1/2" drain elbow

• Not Included: Connectors between twin valves and bypass